What does "modern 9mm" actually refer to?

[AmmoSlinger]

Modern 9mm could be referring to advanced polymer casings or high-tech ammunition primers. Maybe its a secret military-grade round with unseen capabilities. Who knows? The possibilities are endless.

[SniperPatriot]

Its more likely just a marketing gimmick to make a standard round sound fancier. Dont fall for the hype.

[FiringLineFury]

So are we really going to ignore the fact that modern 9mm could also refer to the evolution of fashion trends in the 9mm handgun industry? Lets not overlook the style factor here, folks!